Setting tool



D. H. REED SETTING TOOL Sept. 20, 1932.

Filed May 14. 1931 DEMPSON H. REED.

INVENTOR ATTORNEY plane 33 of Fig.1; and

e-seoiri np Patented Sept. 20, 1932 DEMPSON H. REED, OF HOUSION, TEXAS se m m emi i atisn sle aw. 3 etie -53 39- My invention relates to setting tools for use particularly in setting packers wells. One of the most efiecti've types of packers employed in wells is collapsed longitudinal ly and thus forced'to fill the spac'e between the screen or liner and the interior of the easing' by being forced downwardly by the use of the settingtool employed in lowering the strainer and packer into position. The principaldifiiculty with devices of this'character heretofore has been that the arrangement for releasing the setting tool so that it may be used as a hammer in collapsing the packer has been unreliable. It been necessary to rotate the setting tool to release it from n ag m ith he Pa k and in t i rotating the same'the operation of theconnecting means has been found to 'beunrelable in that'it will not release when desired It is an object of the invention to provide a setting toolto be used with paclters for setting and expanding the same, which may be released without the necessity of rotat on of the setting tool when the screen has been placed in position.

I desire to provide a positive latching engagement b w n th s t 0. 1 n l' he packer which will allow force to be exerted upon the packer when is introduced into the well without danger of setting the Packet prematurely. I also have as an object to provide a setting device through which the circulation of liq uid into the well may be carried out withont influencing the latching engagement between the setting tool and the packer.

As a general object of the invention 1 desire to provide a setting toolwhich may be rigidly connected with the upper end of the packer and such engagement be. assured r out he tt 9 h d vis 1 1 12 1 he release thereof is desired.

In the drawing herewith, Fig. l aqen: tral vertical sectionthrough a setting device constructed in accordance with my invention. Fig. 2 is a transverse section on the plane Fig. 3 is a similar transverse section on'the Fig. 4 is a similar transverse sectionon I th l H fF Y Withreference particularly toFig. 1,. I have shown a pipe section lywhicli be understood as being a emen of drill stein or;,other similar pipe to be used in settinga 'paclrer and'th e device connected therewitlfiii deep well for oil, gas and the like. The

engagement within threaded socket 3, at the upper-end of a housings forniy" device. Said housing is a eylindi'ical Iiilellijr hav ng am esia med e-"ie e' a mandrel 5. The lower end o f'thehousing 4 is increased in internal diameter at,6, "as "1i.

toengage over the radial flange upon the lower section 8 of the mandrel. 1 T

p '5 The mandrel 5 is a tubular member fitting withinthe liousing t and having 'a paelriiig I ring 9 thereon to form a fluid tight engage:

meat with the interior of the San housing. Its lower end is connected at71Owith the lower extension 8 thereof. The inte'riorbf the mandrelis of uniform dia mete r th rou in out the greater port-ion ofits'lengthbiitis decreased in diameter toward the loweii end to provide a shoulder 11 upon which coil spring 12-may be seated. Theiint erioir chain her within the mandrel provides a cyliii der within which a piston '14 mayfitf Hie said pistonisa tubular-blo cli of material, the Y upper end of which hasja n annularpltatie 15 thereonythe outer periphery of vided with a packing ring 16 to the cylinderchamb'er 131 Pl t .5 j cas et e h hea o the pist ni y a l a i of ca r er Said ring slopes-inwardly and forms aseat within which a ball 18 detted lijies tailedjas shown 211321 is F g. ts anew sliding connection with latching degs 2 2', which re provided with laterally elx tended a ae Within was - tenons on-the inner end to fit'witlii'n" the mar It will be noted that the downward movement of the piston head 14 relative to the dOgs'Will have the elfect of drawing the dogs inwardly in a radial di-' rection. Said dogs project through openings 23 in the'mandrel and through sin1ilaropenings 24 in the outer, housing 4 of the setting tool. When said dogs are in normal position at the lower endof said grooves 19 they 'pro-' ject outwardly flush withsthe. outer surface of the housing. Said dogs are tapered slightly outward so that they may be easily with drawn when desired. As will be seen from Fig. 4, I have shown three'such'dogs working in slots in the side of the piston headla.

As will beseen from F ig..j2,- a longitudinal v opening 25 is providedthrough the head 14:

of the piston whereby a limited circulation of liquid 'therethrough may be accomplished at all times even when the, ball 18 is in position closing the passage through the-piston. The

f coil spring 12 seated on the lower end of the mandrel, supportsthe piston head 14; in posi tionwith the dogs 22 projecting through the housing, as shown ,in Fig. 1 The spring is under compression, however, tending to raise the pistonwhenthedogsare released. The lower extensionil upon the mandrel is engaged at its lower end at 26 with the upper end 27 of the packer body or with a drill pipe extension as desired. The upperend of the member 27 has an extension 28, which is of large internal diameter but of smaller outer diameter than the saidmember 2 7 Thisextension, forms the support for a packer. There is a gland member 29 connected w1th theouter upper end of the extension by means of abuttress, thread, which allows the move ment downwardly of the gland but prevents movement upwardly. Below the flange 30 at the upperend of the gland is a packing member 31, which may be'of rubber orother compressible. material, and which may be compressed outwardly against-the wal of the casing in the usual' manner.

Below the gland member29, andwithin the compressible sleeve, 3 1 ,is a ring 'orsleeve 32 1 of soft metah-such as lead," and it is to'be understood that when; the gland member 29 is forced downwardly it will compress the lead and force it outwardly beneath the sleeve 31 and assists in maintaining a fluid seal with thew all of the-well. q To, provide an indicating device to show when the setting tool hasbeen properly operated, I provide a lateral opening33" in the wall of the mandrel 5"above the piston. This opening,- when thepiston is in normal'posl-v tion, is above the pistonand.itsouter end is closed against the inner wall by means of the,

packing ring 34; There is, another. opening 35in the wallof the housing spaced somewhat abovethe opening 33, and it isto be understoodthat when the mandrel 5 is raised slighte leased.

ly the openings 33 and 35 will register to -ing' andvniandrel nonrotatably together and when the ma'ndrelis in normal inoperative position the keys 36 will be at the upper ends of the'slots and willassist in supporting the .mandreL.

In the operation of my device the parts "are assembled as shown in Fig. 1 and introduced downwardly. into the well. l/Vhen the device" has been placed in position with the extension 27. resting upon the bottom of the well, the well may then be washed. The liquid will be pumped downwardly through the passages indicated through thesetting tool and when thishas been accomplished, the packer may be set. I

v The settingof the packer is performed by dropping the ball 18 from the surface downwardly throughgthe drill steml and thus closing the opening through the piston 14. 'VVater pressure may then be employed to exert a pressure downwardly upon the piston 14 The operator will then exert a slight thrust downward upon the drillstem to move the housing downwardly to'r-eleasethe wedging efiect between the housing and the man.- drel and allow the piston to move downwardly sufiiciently towithdraw thedogs 22 from the housing, The housing may then move downwardly relative to the mandrel and the I will allow a releaseof pump. pressure above the piston and indicate to the operator that thedogs .22 have been withdrawn and re The further downward pressure upon the housing will bring the lower end thereof into contactwith the-gland upon the packer and force it downwardly to compress the-same longitudinally and seat the same. Aseries of blows may be struck by the housing upon the packer to-completely seal the spaceoutside the packerandwithin the casing. When this. has been done the device may be unscrewed from its connection 10 and withdrawn,leaving the' packer in the hole. The connection at' 1 0 may thread, if desired, so that the'setting tool may be disconnected by righthandrotation.

' This device may be positively operated by the simple use of pump pressure and it will be clea'r to the operatorat alltimesfas to the action of histool. 'The o'pera'tion is therefore simple and effective and is not liable to failin use. q

What I'claim as new is:

' 1. A device of the character described lincluding a stem,ia housing-sleeve thereon, a mandrelsl dable lnsaid housing, a packer on said mandrel below said housing, means be a "leftha'nd connecting said mandrel to saidghousing-,.re-j

leasable in response to fluid pressure, said housing when released being adapted to compress said acker.

2. A device of the character described including a stem, a housing sleeve thereon, a mandrel slidable in said housing, a packer on said mandrel below said housing,

ineans connecting said mandrel to said housing releasable in response to fluid pressure, means operative on a slight relative downward movement of said housingto indicate that said releasable means has been withdrawn from said housing, said housing when released being adapted to compress said packer.

3. In a device of the character described,

fluid pressure to withdraw said latch and release said housing, and a packer below said housing adapted to be engaged and set by the relative downward movement of said housing.

5. In a device of the character described, the combination including a stem, a tubular housing thereon, a mandrel telescoping within the lower end of said housing, a radially extending latching means connecting said mandrel and housing rigidly together, means engaging said latching means responsive to fluid pressure to withdraw said latchand release said housing, and a packer below said housing adapted to be engaged and set by the relative downward movement of said hous- 7 ing, and means to prevent relative of said mandrel and housing.

6. In a device of the character described a stem, a tubular housing thereon, a mandrel V rotation within said housing and projecting below said housing, .a packer below said housing,

means to prevent engagement of said housing with said packer to set said packer, said means being releasable by liquid pressure,

and means to indicate that said housing has been released.

7 In a device of the character described, a stem, a tubular housing thereon, a mandrel within said housing and projecting below said housing, apacker below said housing,

means including radially-extending latching dogs to prevent engagement of said housing with sald packer, means on sald houslng to said housingand mandrel to hold them rigset said packer, means having sliding engagement with said dogs, said means engaging said dogs being releasable by liquid pressure, and means to indicate that said housing has been released.

, 8. A drill stem, a housing thereon, a mandrel in said housing projecting below the same, a packer on said mandrel below said housing, latching dogs projecting through said'housing and mandrel to hold themrigidly together, and a piston engaging said dogs, responsive to fluid pressure tomove downwardly and withdraw said dogs from said housing whereby said housing may be moved downwardly to set said packer.

9. A drill stem, a housing thereon. a mandrelin said housing projecting belowthe same, a packer on said mandrel below said housing, latching dogs projecting through idly together, and a piston engaging said dogs, responslve to flu1d pressure to move downwardly and withdraw said dogs from said housing whereby said housing may be moved downwarly to set said packer, said piston having a longitudinal fluid passage adapted to be closed by a ball valve.

10. A drill stem, a housing thereon,a mandrel in said housing projecting below the same, a vpacker on said mandrel below said housing, latching dogs projecting through said housing and mandrel to hold them rigidly together, and a piston engaging said dogs, responslve to fluid pressure to move downwardly and withdraw said dogs from said housing whereby said housing may be moved downwardly to set said packer, said mandrel and houslng belng releasable from .said packer by rotation of said mandrel.

In testimony whereof I hereunto aflix my signature this 5th day of May A. D. 1931.

DEMPSON H. REED. 

